	$(document).on("touchmove",function(e) {
		e.stopPropagation();
		e.preventDefault();
		if (!!this.move) {
			var posix = !document.move_target ? {'x': 0, 'y': 0} : document.move_target.posix,
				callback = document.call_down || function() {
					var _touch = e.originalEvent.targetTouches[0];
					if(_touch.pageX<120 || _touch.pageX>$("body").width()-5){
						return false;
					}else{
						$(this.move_target).css({
							'top': _touch.pageY - posix.y,
							'left': _touch.pageX - posix.x
						});
					}
					
				};
			callback.call(this, e, posix);
		}
	}).on("touchend",function(e) {
		e.stopPropagation();
		e.preventDefault();
		if (!!this.move) {
			var callback = document.call_up || function(){};
			callback.call(this, e);
			$.extend(this, {
				'move': false,
				'move_target': null,
				'call_down': false,
				'call_up': false
			});
		}
	});

	function changeDrage(target,drag){
		// 多保留几位保证每个都不一样
		var $ele = Math.random().toFixed(20);
			$ele = $(target).on("touchstart",function(e) {
			// e.stopPropagation();
			if(hhh == 1){
				return;
			}else{
				e.preventDefault();
				$(this).css({"z-index":"100"}).siblings().css({"z-index":"1"});
				var _touch = e.originalEvent.targetTouches[0];
			    var offset = $(this).offset();
			    this.posix = {'x': _touch.pageX - offset.left, 'y': _touch.pageY - offset.top};
			    $.extend(document, {'move': true, 'move_target': this});
			}
		}).on('touchstart', drag, function(e) {
			var _this = $(this);
			e.stopPropagation();
			e.preventDefault();
			var _touch = e.originalEvent.targetTouches[0];
		    var posix = {
		            'w': _this.parent().width(), 
		            'h': _this.parent().height(), 
		            'x': _touch.pageX, 
		            'y': _touch.pageY
		        };
		    $.extend(document, {'move': true, 'call_down': function(e) {
		    	e.stopPropagation();
				e.preventDefault();
				var _touch = e.originalEvent.targetTouches[0];
				console.log(Math.max(30, _touch.pageX - posix.x + posix.w), Math.max(30, _touch.pageY - posix.y + posix.h));
				
		        _this.parent().css({
		            'width': Math.max(30, _touch.pageX - posix.x + posix.w),
		            'height': Math.max(30, _touch.pageY - posix.y + posix.h)
		        });
		    }});
		    return false;
		});
	};


	